<UserStory> 1958: Service Refactoring </UserStory>
UserStory #1958
<Changes>
1. Added DataStoreLockGuard.h include to project file and InventoryManagementService
for thread-safe datastore operations.
2. Enhanced DataStore::getUsers to load SerializedUser records, refresh cache,
and attach notifications with recipient validation.
3. Enhanced DataStore::getInventoryItems to load SerializedInventoryItem records
and refresh cache for tracked inventory items.
4. Refactored InventoryManagementService::sendLowStockAlerts to use tracked
inventory and user maps with DataStoreLockGuard, ensuring safe access.
5. Removed legacy observer management, load/save inventory items, and related
persistence functions from InventoryManagementService.
6. Updated InventoryManagementService::addInventoryItem to insert new records
into tracked inventory map and persist changes via saveInventoryItems.
7. Updated InventoryManagementService::addInventoryItemStock to validate item
existence, update quantity, mark record as MODIFIED, and persist changes.
8. Refactored InventoryManagementService::getInventoryItems to return object
map extracted from tracked records with DataStoreLockGuard.
9. Updated InventoryManagementService::removeInventoryItem to validate item ID,
mark state as INACTIVE, set record state to MODIFIED, and persist changes.
10. Updated InventoryManagementService::getInventoryItem to safely retrieve
inventory items from tracked records with error handling.
</Changes>
<Test>
N/A
</Test>
<Review>
Sreeja Reghukumar
</Review>
Avinash Rajesh
f0c7d27e6c